Yeah.... That is definitely a CA cultural thing: Lifted or large trucks with low-profile tires. Not sure about the coexist sticker though.

This reminds me though, I did see an awesome (weird) set of stickers yesterday that I wish I had a picture of: It was a sticker in the middle of the back window on an SUV that said "House divided" (usually a sports reference) and then a little sticker that said "Her house" with an arrow to the left, pointing at a hippy coexist sticker. To the right was a sticker that said "His house" with an arrow to the right, pointing at the coexist sticker we know and love with the gun company logos in it. The whole right side of the bumper then had hunting and gun-related stickers (realtree, browning logo, several AK stickers, an NRA sticker and more) and the left side of the bumper just had a single tie-dye colored peace sign on it. Best part: when I passed this SUV, the driver was a very elderly-looking Hispanic woman, driving by herself.